California Goes to War
Slideshow curated by the California State Archives
https://www.google.com/culturalinstitute/beta/u/0/exhibit/wALSW5Q6KBX4IA
California and the First World War
Unit histories and other resources from the California Military Department.
California WW1 Centennial: Readings and Resources
From the official California WW1 Centennial Task Force website.
http://www.worldwar1centennial.org/index.php/california-additional-readings-and-resources.html
California WW1 Centennial Task Force
Website for California's official World War I commemorative effort.
http://www.worldwar1centennial.org/index.php/california-in-ww1-welcome.html